Average
#1222 of 2,466 schools in NJ
Top 50% in state
Millstone River School
Elementary School · West Windsor-plainsboro Regional School District · Plainsboro, NJ
A West Windsor-plainsboro Regional School District elementary school serving grades 3rd – 5th.
75 GROVERS MILL ROAD, Plainsboro, NJ 08536
- Math 67% vs NJ 47% (2025)
- Reading 62% vs NJ 50% (2025)
- 10.3:1 student-teacher ratio
Academics
Full Profile · 3/3 metricsView breakdown
View breakdown
View breakdown
Students at Millstone River School score 64% proficient, which is above what's typical for similar communities (expected: 63%).
2025 NJSLA proficiency
Most recent published year. School vs. NJ average.
Trend
↑ RecoveringProficiency declined earlier in the 17-year record (2009–2025), then recovered 7 points since 2021, reaching 64% in 2025.
Show all 16 years
Multi-year averages used by the rating model: math 74% (multi-year average, 2009-2025) · reading/ELA 72% (multi-year average, 2009-2025)
* COVID-affected year — test participation was uneven nationwide. This data is weighted at 50% in the Growth score calculation.
Based on 41 test records from NJ state assessments and EdFacts (NCES).
Equity & diversity
Shown separately, not included in the overall scoreFree/reduced lunch
8.9%
Students qualifying for federal meal assistance
How we rate schools
A clear 1–10 score built from public data — growth, academics, and learning environment. No hidden criteria, no pay-to-play.
See how we rateThe neighborhood
Where Millstone River School sits, and what the surrounding area looks like.
Nearby same-level schools are colored by their score. Pins are locations, not attendance boundaries. Open the New York map →
Getting around & local context
- Walk 6Car-Dependent
- Bike 58Bikeable
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Area profileU.S. Census ACS 5-year estimates (ACS 2019–2023 5-year estimates)
Median income
$128,426
Median home value
$655,100
Median rent
$1,908/mo
College educated
79.2%
Homeownership
44.1%
Poverty rate
2.3%
ACS 2019–2023 5-year estimates for the ZCTA associated with school ZIP 08536; this is area context, not an attendance boundary.
Programs & students
Programs & Offerings
Compare nearby
Nearby same-level schools
4 from a 5-mile search; district fallback available
| School | Score | Grades | Distance | Enrollment | Compare |
|---|---|---|---|---|---|
| J.v.b. Wicoff Elementary SchoolEnrollment path unverified | 8.5 | K–3 | 0.6 mi | 274 | Compare → |
| Town Center Elementary School at PlainsboroEnrollment path unverified | 5.9 | PK–3 | 0.9 mi | 438 | Compare → |
| Maurice Hawk Elementary SchoolEnrollment path unverified | 8.7 | PK–3 | 2.1 mi | 727 | Compare → |
| French American School of PrincetonPrivate · tuition | 8.0private | PK–8 | 2.7 mi | 108 | Compare → |
Distance is proximity only; it is not attendance eligibility.
Enrollment path unverified: Potential public school; its attendance or application path has not been classified.
Private · tuition: Potential private option; tuition and admission requirements have not been verified.
Public and private scores come from different models and are shown side by side, not blended into one ranking.
West Windsor-plainsboro Regional School District
- Schools in district
- 10
- Rank in district
- #9 of 10
- District spending per student
- $24,392NCES F-33 · FY 2023 · This annual source is three years behind the current year.
- District child poverty rate
- 2.6%Census SAIPE · 2024
Millstone River School is listed in West Windsor-Plainsboro Regional School District; a district label does not verify attendance for an address.
About Millstone River School
Millstone River School is a public elementary school in Plainsboro, NJ, part of West Windsor-plainsboro Regional School District, serving approximately 813 students in grades 3rd-5th with a 10.3:1 student-teacher ratio. It holds a MySchoolScout rating of 6.5 out of 10 and ranks #1,222 of 2,466 schools in NJ. State assessment records show 74% math proficiency (multi-year average, 2009-2025) and 72% reading/ELA proficiency (multi-year average, 2009-2025).
Frequently asked questions
Common questions about Millstone River School
What grades does Millstone River School serve?
Millstone River School serves students in grades 3rd through 5th.
How many students attend Millstone River School?
Millstone River School has an enrollment of approximately 813 students.
What is the student-teacher ratio at Millstone River School?
The student-teacher ratio at Millstone River School is 10.3:1. A lower ratio generally means more individual attention per student. The national average is approximately 16:1 for public schools.
How does Millstone River School rank in NJ?
Millstone River School ranks #1,222 of 2,466 schools in NJ.
What is Millstone River School's MySchoolScout rating?
Millstone River School has a current MySchoolScout rating of 6.5 out of 10. This score combines the level-appropriate components shown in the rating breakdown; equity data is shown separately for context.
What are the test scores at Millstone River School?
Based on loaded state assessment records, Millstone River School has 74% math proficiency (multi-year average, 2009-2025) and 72% reading/ELA proficiency (multi-year average, 2009-2025).
Is Millstone River School a charter school?
No, Millstone River School is not a charter school. It is a traditional public school operated by the local school district.
Is Millstone River School a Title I school?
No, Millstone River School is not currently a Title I school.
What does the Free & Reduced Lunch percentage mean for Millstone River School?
8.9% of students at Millstone River School qualify for free or reduced-price lunch. This is a commonly used indicator of economic need and provides important context when interpreting test scores.
School factsNCES Common Core of Data (CCD) (SY 2023–24)
- Grades
- 3rd – 5th
- Enrollment
- 813
- Student-Teacher Ratio
- 10.3:1
- Teachers (FTE)
- 79
- Type
- regular
- Setting
- Fringe Rural
- County
- Middlesex County
- Chronic Absenteeism (SY 2022-23)
- 11.1%
- Phone
- (609) 716-5500
- Area population (ZIP 08536)
- 20,558
- Area average commute
- 33.2 min
- Area median age
- 36.7
About this school's data
Every number on this page comes from a published source with a stated period. Where a source is partial, aging, or describes a surrounding area rather than the school, that limitation is named below.
- School directory (enrollment, grades, staff, contact)
- NCES Common Core of Data (CCD) · SY 2023–24 · Medium confidence
- Source period: SY 2023–24. A newer release may be available.
- MySchoolScout rating and rank
- MySchoolScout ranking model · Low confidence
- Vintage not available. Do not use this measure alone.
- Derived as a weighted blend of the component scores shown in Academics from state assessment, EdFacts growth, and NCES resource records.
- Math proficiency
- State department of education · 2025 NJSLA · Medium confidence
- Available for part of the eligible units; results may not represent the full area.
- Source period: 2025 NJSLA. A newer release may be available.
- Derived from source records rather than read directly from one field.
- Reading/ELA proficiency
- State department of education · 2025 NJSLA · Medium confidence
- Available for part of the eligible units; results may not represent the full area.
- Source period: 2025 NJSLA. A newer release may be available.
- Derived from source records rather than read directly from one field.
- Student progress (growth)
- State assessments · Mixed source periods · Low confidence
- Vintage not available. Do not use this measure alone.
- Available for part of the eligible units; results may not represent the full area.
- Derived as the fitted year-over-year slope of proficiency from multi-year assessment records.
- Neighborhood (income, housing, education)
- U.S. Census ACS 5-year estimates · ACS 2019–2023 5-year estimates · Low confidence
- Older source: ACS 2019–2023 5-year estimates. Use as historical context.
- Reported for the ZCTA for ZIP 08536; this does not measure the attendance area.
- Programs (AP/IB, athletics, gifted)
- CRDC via Urban Institute · SY 2021–22 · Medium confidence
- Available for part of the eligible units; results may not represent the full area.
- Source period: SY 2021–22. A newer release may be available.
Evidence periods: Rating mixed/unknown input periods; assessments multi-year average, 2009-2025; directory SY 2023–24
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